Acts 12:11-16 King James Version (KJV)
11 And when Peter was come to himself, he said, Now I know of a surety, that the Lord hath sent his angel, and hath delivered me out of the hand of Herod, and from all the expectation of the people of the Jews.
12 And when he had considered the thing, he came to the house of Mary the mother of John, whose surname was Mark; where many were gathered together praying.
13 And as Peter knocked at the door of the gate, a damsel came to hearken, named Rhoda.
14 And when she knew Peter's voice, she opened not the gate for gladness, but ran in, and told how Peter stood before the gate.
15 And they said unto her, Thou art mad. But she constantly affirmed that it was even so. Then said they, It is his angel.
16 But Peter continued knocking: and when they had opened the door, and saw him, they were astonished.